Date: Tue, 10 Feb 2015 10:39:25 -0700 From: John Nielsen <lists@jnielsen.net> To: Ron Croonenberg <ronc@lanl.gov> Cc: freebsd-infiniband@freebsd.org Subject: Re: IBSRP and switches Message-ID: <D7E7CC37-B171-469F-B783-BF943C1D1762@jnielsen.net> In-Reply-To: <54DA2F75.3000307@lanl.gov> References: <54DA2F75.3000307@lanl.gov>
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On Feb 10, 2015, at 9:19 AM, Ron Croonenberg <ronc@lanl.gov> wrote: > =46rom what I understand IBSRP is a point to point protocol and cannot = be switched over an IB switch, correct? (and the presented devices = cannot be see by initiators 'through' a switch. At $work we use SRP over InfiniBand with lots of switches in the mix. = Never had an issue. > Is there a 'scsi protocol' that I can run over IB that can be = switched? Unfortunately, there isn't currently SRP support on FreeBSD. There is = RDMA support, so it might be feasible to port the SRP code from Linux, = but I haven't really looked in to it. There's always iSCSI. FreeBSD 10.0 saw the addition of the kernel-based = target and initiator (with some improvements since), but I don't think = it takes advantage of RDMA or other acceleration techniques when used = with InfiniBand. I'd love to be wrong. :) JN
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